SUPPORT STAND FOR FLAT-PANEL MONITOR AND ELEVATING SUPPORT FOR SUPPORT STAND
An exemplary support stand (102) for a flat-panel display body includes an elevating support (30), a monitor bracket (50), and a support member (20). The elevating support includes a first chassis (321), a second chassis (322), a plurality of supporting blocks (3231) for connecting end portions of the first chassis and the second chassis, an elastic member (391), a first pivot subassembly (305), and a second pivot subassembly (306). The monitor bracket is rotatably connected to the first pivot subassembly. The support member is rotatably connected to the second pivot subassembly. The elastic member is capable of exerting a rebound force on two of the first chassis, the second chassis, and the supporting blocks. The first and second pivot subassemblies are fixed to the supporting blocks. The monitor bracket and the support member are rotatably connected to the first and second pivot subassembly correspondingly.
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1. Field of the Invention
The present invention relates generally to support stands and, particularly, to a support stand for a flat-panel display body.
2. Discussion of the Related Art
Flat-panel display bodies, such as liquid crystal display (LCD) monitors, offer advantages, over cathode ray tubes (CRTs) such as a greatly reduced size, and better image quality. Furthermore, because of the small weight of the flat-panel display body, the viewing angle and the height of the flat-panel display body can be adjusted without moving a base of a support stand of the flat-panel display body.
A typical support stand generally includes a monitor bracket for attaching to the flat-panel display body, a rotatable bracket for fixing the monitor bracket, an elevating support, a support member, and a base member for mounting the support member. The rotatable bracket is rotatably hinged to an end of the elevating support by a first hinge assembly. The support member is hinged to another end of the elevating support by a second hinge assembly.
A viewing angle of the flat-panel display body mounted on the typical elevating support can be adjusted by rotating the rotatable bracket relative to the elevating support. A height of the flat-panel display body can be adjusted by rotating the elevating support relative to the support member. A frictional force between components of the elevating support balances a gravitational force of the flat-panel display body, thus the flat-panel display body may be retained at a desired position. However, the components of the elevating support may become loose when the elevating support is used for a certain time. As a result, the flat-panel display body may not remain stable at the height selected by a user. Therefore, the typical elevating support has a relatively short usage life.
Therefore, a new support stand for a flat-panel display body is desired in order to overcome the above-described shortcomings.
SUMMARYIn one aspect, a support stand for a flat-panel display body includes an elevating support, a monitor bracket, and a support member. The elevating support includes a first chassis, a second chassis, a plurality of supporting blocks for connecting end portions of the first chassis and the second chassis, an elastic member, a first pivot subassembly, and a second pivot subassembly. The monitor bracket is rotatably connected to the first pivot subassembly. The support member is rotatably connected to the second pivot subassembly. The elastic member is capable of exerting a rebound force on two of the first chassis, the second chassis, and the supporting blocks. The first and second pivot subassembly are fixed to the supporting blocks. The monitor bracket and the support member are rotatably connected to the first and second pivot subassembly correspondingly.
In another aspect, an elevating support, used for a support stand of a flat-panel display body, includes a first chassis including end portions, a second chassis including end portions, a plurality of supporting blocks, an elastic member, a first pivot subassembly, a second pivot subassembly, two rotatable brackets, and a connecting base. The supporting blocks are configured for connecting end portions of the end portions of the first chassis and the second chassis. The elastic member is capable of exerting a rebound force on two of the first chassis, the second chassis, and the supporting blocks to make the first chassis and the second chassis tend to elevate. The first pivot subassembly is fixed to the supporting blocks connected to a first end portion of the first chassis and the second chassis. The second pivot subassembly is fixed to the supporting blocks connected to a second end portion of the first chassis and the second chassis opposite to the first end portions. The rotatable brackets are rotatably connected to the first pivot subassembly. The connecting base is rotatably connected to the second pivot subassembly.
Other advantages and novel features will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present support stand for a flat-panel display body. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
Reference will now be made to the drawings to describe the embodiments of the present support stand and elevating support in detail. Referring to
Referring to
Referring also to
The bracket subassembly 302 includes a first chassis 321, a second chassis 322, and four supporting assemblies 323 (a first supporting assembly, a second supporting assembly, a third supporting assembly, and a fourth supporting assembly). The first chassis 321 includes a flat base 3211, two side walls 3212 extending perpendicularly from opposite sides of the flat base 3211, and a resisting wall 3213 defining a through hole 3214. The resisting wall 3213 extends perpendicularly from a top end of the flat base 3211 and perpendicularly relative to the side walls 3212. Each of the side walls 3212 defines a guiding slot 3215.
The second chassis 322 is similar to the first chassis 321 except that the second chassis 322 does not include a resisting wall, and side walls 3222 of the second chassis 322 does not define guiding slots.
Each of the supporting subassemblies 323 includes a pair of supporting blocks 3231, a pair of pivot shafts 3232, four tab washers 3233, a pair of resilient rings 3235.
Each of the supporting blocks 3231 defines two pivot holes (not labeled) adjacent to two end portions and a fixing hole (not labeled) in a middle portion. Each of the supporting subassemblies 323 is rotatably attached to ends of the first chassis 321 and the second chassis 322 via the pivot holes of the supporting blocks 323 and the pivot shafts 3232. Two supporting subassemblies 323 are fixed to the first pivot subassembly 305 via the fixing holes of the supporting blocks 3231. The other two supporting subassemblies 323 are fixed to the second pivot subassembly 306 via the fixing holes of the supporting blocks 3231.
The connecting base 303 is substantially U-shaped. The connecting base 303 includes two parallel side walls (not labeled). Each side wall of the connecting base 303 defines a through hole (not shown).
The first pivot subassembly 305 includes a first pivot shaft 351, a sleeve 352 sleeved on the first pivot shaft 351, a torsion spring 353 sleeved on the sleeve 352, and two first hinge subassemblies (not labeled). The sleeve 352 is sleeved on a middle portion of the first pivot shaft 351. The torsion spring 353 is sleeved on the sleeve 352. The first hinge subassemblies are attached to opposite shaft portions of the first pivot shaft 351 correspondingly. Each of the first hinge subassemblies includes a limiting washer 354, a first pressing washer 355, a first protecting washer 356, a second protecting washer 357, two first resilient rings 358, a first washer 359, a adjustable nut 3050, a second resilient ring 3051, a second pressing washer 3052, a second washer 3053, and a nut 3055.
The first pivot shaft 351 is substantially cylindrical, and includes two shaft portions 3511 at opposite ends. The shaft portion 351 defines a thread (not labeled) on a distal end portion. The shaft portion 3511 is non-circular. In this embodiment, a cross-section taken perpendicular to a central axis of the shaft portion 3511 is double D-shaped, thereby forming two flat surfaces. Thus, the thread is discontinuous.
The torsion spring 353 includes two torsion portions (not labeled), an n-shaped connecting portion 3532 for connecting the torsion portions. Each of the torsion portions of the torsion spring 353 includes a latching end 3533.
The limiting washer 354 defines a deformed hole (not labeled) in a middle. The shape and size of the deformed hole corresponds to a cross-section of the shaft portion 3511. The limiting washer 354 defines a restricting groove 3541 and a latching groove 3542 on a periphery.
The second pivot subassembly 306 includes a second pivot shaft 361 and two second hinge subassemblies (not labeled). The resisting member 308 is sleeved on a middle portion of the second pivot shaft 361. The second hinge subassemblies are attached to opposite shaft portions of the second pivot shaft 361. Each of the second hinge subassembly includes a block 362, two resilient rings 363, 364, a resilient washer 365, a washer 366, and a nut 367.
Referring to
The resisting member 308 includes a cylindrical portion 3081 and a fixing portion (not labeled) extending from the cylindrical portion 3081. The resisting member 308 is fixed to a surface of the connecting base 303. The resisting member 308 is configured to resist the roller 307.
The elastic subassembly 309 includes a spring 391, a guiding shaft 392, and the pressing block 393. The spring 391 is sleeved on the guiding shaft 392. Two ends of the guiding shaft 392 are connected to the pressing block 393 and the resisting wall 3213 of the first chassis 321 correspondingly. The pressing block 393 is substantially U-shaped. Each end of the pressing block 393 defines the holding groove 3931. The holding grooves 3931 are configured to non-rotatably latch on to the latching ends of the 370 correspondingly.
Alternatively, the guiding slots 3215 of the first chassis 321 may be replaced by a pair of guiding rails. In such cases, the restricting pole 3702 of the shaft 370 is slidably connected to the guiding rails. The pressing block 393 may be other shapes, such as a cuboid defining a holding groove.
Referring to
The sleeve 352 is sleeved on the middle portion of the first pivot shaft 351. The torsion spring 353 is sleeved on the sleeve 352. Then, each opposite shaft portions of the first pivot shaft 351 is passed through the components of each first hinge subassembly such as the limiting washer 354, the first pressing washer 355, the first protecting washer 356, the rotatable bracket 301, the second protecting washer 357, two first resilient rings 358, the first washer 359, the adjustable nut 3050, and the supporting assembly 323 in that order. The connecting portion 3532 of the torsion spring 353 engages in the notch 3013 of the rotatable bracket 301. The latching ends 3533 of the torsion spring 353 is inserted into the latching groove 3542 of the limiting washers 354. Thus, the first pivot subassembly 305 is connected to the supporting subassemblies 323. After that, each opposite shaft portions of the first pivot shaft 351 is passed through the components of each first hinge subassembly such as the second resilient ring 3051, the second pressing washer 3052, and the second washer 3053 in that order. The nuts 3055 then engages with each end of the first pivot shaft 351 correspondingly.
The resisting member 308 is sleeved on the middle portion of the second pivot shaft 361 of the second pivot subassembly 306. Then, each opposite portions of the second pivot shaft 361 is passed through the components of each second hinge subassembly such as the block 362, the side wall of the connecting base 303, a resilient ring 363, the supporting subassembly 323, the resilient ring 364, the resilient washer 365, and the washer 366 in that order. The nuts 367 engage with distal ends of the second pivot shaft 361. As such, the other end of the bracket subassembly 302 is rotatably connected to the connecting base 303 via the second pivot subassembly 306. The resisting member 308 is fixed to the connecting base 303. The cylindrical portion 3081 of the resisting member 308 resists the roller 307.
When the stand support 102 is used for supporting a flat-panel display body, an end of the monitor bracket 50 of the stand support 102 is fixed to a display body 10 of the flat-panel display body 100, and another end opposite to the display body 10 is fixed to the rotatable bracket 301 of the elevating support 30. The connecting base 303 is fixed to the support member 20. In use, a force is applied on the display body 10 for rotating the display body 10 with the rotatable bracket 301 relative to the bracket subassembly 302 along an axis of the first pivot shaft 351 of the first pivot subassembly 305, thereby adjusting the viewing angle of the flat-panel display body 100. A frictional force between the rotatable bracket 301 and other components of the first pivot subassembly 305 enable the display body 10 to retain at a desired position. An external force for rotating the rotatable bracket 301 may be changed by adjusting the adjustable nuts 3050 of the first pivot subassembly 305. The restricting block 3012 of the rotatable bracket 301 and the restricting groove 3541 of the limiting washers 354 cooperatively restrict the rotatable bracket 301 in limited adjusting range. A torsion force of the torsion spring 353 either increases or decreases according to the rotation of the rotatable bracket 301, thereby preventing an excessive force from damaging the first pivot subassembly 305.
Referring to
Referring also to
When an external force is applied on the display 10 to make the rotatable brackets 301 rotate relative to the first pivot shaft 351 of the first pivot subassembly 305, the viewing angle of the display body 10 is adjusted. When the external force is released, frictional forces between the rotatable bracket 301 and components of the first pivot subassembly 305 enable the display body 10 to retain in a desired position.
In alternative embodiments, the elastic subassembly 309 may be omitted. In such cases, a torsion spring is disposed between the side wall 3212 of the first chassis 321 and the supporting subassembly 323. The torsion spring is sleeved on the second pivot shaft 361. Two ends of the torsion spring are fixed to the side wall 3212 of the first chassis 321 and the supporting subassembly 323 correspondingly, and the torsion spring is compressed between the first chassis 321 and the supporting subassembly 323 connected to the connecting base 303. The torsion spring is capable of exerting a rebound force on the side wall 3212 of the first chassis 321 and the supporting subassembly 323. The angle between the side walls 3212 of the first chassis 321 and the supporting subassemblies 323 has a tendency of becoming larger. Therefore, the distance between the first chassis 321 and the second chassis 322 has a tendency of becoming smaller. The rebound force of the torsion spring partially balances the gravitational force acting on the display body 10. Alternatively, the torsion spring may be replaced by a compression spring with two rings formed at distal ends. The two rings of the compression spring are fixed to the side wall 3222 of the second chassis 322 and the supporting subassembly 323 correspondingly.
Referring to
A torsion force of the tension spring 353 either increases or decreases according to the motion of the elevating support 30, thereby further preventing an excessive force from damaging the elevating support 30. Therefore, the usage life of the elevating support 30 is prolonged. Further, the first and second utmost positions are restricted by the restricting poles 3702 abutting against the restricting grooves 3215 and the restricting blocks 3012 abutting against the restricting groove 3541, thus the elevating support 30 is effectively restricting between the first utmost position to the second utmost position. In other words, the display body can be adjusted between the minimum height and the maximum height.
Referring to
Referring to
It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the examples hereinbefore described merely being preferred or exemplary embodiments of the invention.
Claims
1. A support stand for a flat-panel display body, comprising:
- an elevating support, comprising a first chassis, a second chassis, a plurality of supporting blocks for connecting end portions of the first chassis and the second chassis, an elastic member, a first pivot subassembly, and a second pivot subassembly; the elastic member being capable of exerting a rebound force on at least two of the first chassis, the second chassis, and the supporting blocks to make the first chassis and the second chassis tend to elevate, the first pivot subassembly being fixed to the supporting blocks connected to a first end portion of the first chassis and the second chassis, and the second pivot subassembly being fixed to the supporting blocks connected to a second end portion of the first chassis and the second chassis opposite to the first end portions;
- a monitor bracket rotatably connected to the first pivot subassembly; and
- a support member rotatably connected to the second pivot subassembly.
2. The support stand as claimed in claim 1, wherein the elevating support further comprises a connecting base, the connecting base is rotatably connected to the supporting blocks connected the second end portions of the first chassis and the second chassis, the first chassis includes a resisting wall, and the elastic member is disposed between the resisting wall of the first chassis and the connecting base.
3. The support stand as claimed in claim 2, wherein the elevating support further comprises a roller, a resisting member fixed to the connecting base, and a shaft, the roller is rotatably connected to the first chassis via the shaft, two ends of the elastic member resist the resisting wall of the first chassis and the roller correspondingly, and the roller is rotatable relative to the resisting member.
4. The support stand as claimed in claim 3, wherein the first chassis includes a flat base and two side walls extending from opposite sides of the flat base, each of the side walls defines a guiding slot, and opposite ends of the shaft are slidably received in the guiding slot correspondingly.
5. The support stand as claimed in claim 4, wherein the elevating support further comprises a guiding shaft and a pressing block, the resisting wall of the first chassis defines a through hole, the top end of the guiding shaft is inserted into the through hole, the bottom end of the guiding shaft is fixed to the pressing block, the pressing block is substantially U-shaped, and each end of the pressing block defines a holding groove for resisting the shaft.
6. The support stand as claimed in claim 1, wherein the first pivot subassembly includes a pivot shaft, the rotatable bracket is rotatably sleeved on the pivot shaft.
7. The support stand as claimed in claim 1, wherein the first pivot subassembly includes a first pivot shaft, a sleeve sleeved on the first pivot shaft, a torsion spring sleeved on the sleeve, and two first hinge subassemblies attached to opposite shaft portions of the first pivot shaft.
8. The support stand as claimed in claim 2, wherein the elevating support further comprises a roller, a resisting member disposed in the connecting base, a guiding shaft, and a pressing block, the elastic member is sleeved on the guiding shaft, the resisting wall of the first chassis defines a through hole, the top end of the guiding shaft is inserted into the through hole of the resisting wall, the bottom end of the guiding shaft is fixed to the pressing block, the pressing block is substantially U-shaped, each end of the pressing block defines a shaft hole, the roller is rotatably disposed between two side walls of the pressing block via a shaft, two ends of the elastic member resist the resisting wall and the pressing block correspondingly, and the roller is rotatable relative to the resisting member.
9. The support stand as claimed in claim 2, wherein the elevating support further comprises a guiding shaft and a shaft sleeve, the elastic member is sleeved on the guiding shaft, the resisting wall of the first chassis defines a through hole, the top end of the guiding shaft is inserted into the through hole of the resisting wall, the bottom end of the guiding shaft is fixed to the shaft sleeve, the shaft sleeve is sleeved on a shaft connecting the connecting base and the supporting blocks.
10. The support stand as claimed in claim 1, wherein the elastic member is a torsion spring, two ends of the torsion spring are fixed to the first chassis and the supporting blocks adjacent to the first chassis, and a rebound force of the torsion spring acts on the first chassis and the supporting blocks.
11. The support stand as claimed in claim 10, wherein the second pivot subassembly includes a second pivot shaft, the torsion spring is sleeved on the second pivot shaft.
12. The support stand as claimed in claim 11, wherein the elastic member is a compression spring with two rings formed at distal ends, the rings of the compression spring are fixed to the second chassis and the supporting blocks adjacent to the second chassis.
13. An elevating support, used for a support stand of a flat-panel display body, the elevating support comprising:
- a rotatable bracket;
- a first chassis including end portions;
- a second chassis including end portions;
- a plurality of supporting blocks for connecting the end portions of the first chassis and the second chassis;
- an elastic member, the elastic member being capable of exerting a rebound force on at least two of the first chassis, the second chassis, and the supporting blocks to make the first chassis and the second chassis tend to elevate;
- a first pivot subassembly fixed to the supporting blocks that connected to a first end portion of the first chassis and the second chassis;
- a second pivot subassembly fixed to the supporting blocks that connected to a second end portion of the first chassis and the second chassis opposite to the first end portions;
- at least one rotatable bracket rotatably connected to the first pivot subassembly; and
- a connecting base rotatably connected to the second pivot subassembly.
14. The elevating support as claimed in claim 13, wherein the connecting base is rotatably connected to the supporting blocks connected the second end portions of the first chassis and the second chassis, the first chassis includes a resisting wall, and the elastic member is disposed between the resisting wall of the first chassis and the connecting base.
15. The elevating support as claimed in claim 14, wherein the elevating support further comprises a roller, a resisting member fixed to the connecting base, and a shaft, the roller is rotatably connected to the first chassis via the shaft, two ends of the elastic member resist the resisting wall of the first chassis and the roller correspondingly, and the roller is rotatable relative to the resisting member.
16. The elevating support as claimed in claim 15, wherein the first chassis includes a flat base and two side walls perpendicularly extending from opposite sides of the flat base, each of the side walls defines a guiding slot, and two ends of the shaft are slidably received in the guiding slot correspondingly.
17. The elevating support as claimed in claim 16, wherein the elevating support further comprises a guiding shaft and a pressing block, the resisting wall of the first chassis defines a through hole, the top end of the guiding shaft is inserted into the through hole, the bottom end of the guiding shaft is fixed to the pressing block, the pressing block is substantially U-shaped, and each end of the pressing block defines a holding groove for resisting the shaft.
18. The elevating support as claimed in claim 13, wherein the first pivot subassembly comprises a pivot shaft and two limiting washers, each of the limiting washers defines a restricting groove, the number of the at least one rotatable bracket is two, the rotatable bracket is sleeved on the pivot shaft, each of the rotatable brackets forms a restricting block, and the restricting block of the rotatable bracket and the restricting groove of the limiting washers cooperatively restrict the rotatable bracket in limited adjusting range.
19. The elevating support as claimed in claim 18, wherein the first pivot subassembly further comprises a torsion spring and a sleeve, the sleeve is sleeved on the pivot shaft, the torsion portion has two torsion portion and an n-shaped connecting portion for connecting the two torsion portions, each of the torsion portions of the torsion spring comprises a latching end for abutting against the limiting washers, and the n-shaped connecting portion is fixed to the rotatable bracket.
20. The elevating support as claimed in claim 13, wherein the first pivot subassembly includes a first pivot shaft, a sleeve sleeved on the first pivot shaft, a torsion spring sleeved on the sleeve, two first hinge subassemblies attached to opposite shaft portions of the first pivot shaft, and the torsion spring either increases or decreases according to the rotation of the rotatable bracket, thereby preventing an excessive force from damaging the first pivot subassembly.
Type: Application
Filed: Aug 21, 2008
Publication Date: Jul 2, 2009
Patent Grant number: 8070115
Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD. (Shenzhen City), HON HAI PRECISION INDUSTRY CO., LTD. (Tu-Cheng)
Inventors: JIN-XIN WANG (Shenzhen City), JIAN LI (Shenzhen City), ZHI-GUO SUN (Shenzhen City)
Application Number: 12/195,438
International Classification: F16M 13/00 (20060101); F16M 11/00 (20060101);